If salinity increased at the poles, the water near the poles would

Biology

1 answer:

Triss [41]3 years ago

7 0

B is the correct answer because the density it the salts would make the water increase therefore sink faster

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You INCORRECTLY perform an acid-fast stain on a smear from a mixed culture of Mycobacterium smegmatis (acid-fast) cells and Stap

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Answer:

In acid-fast staining, carbon fuchsin is used as a primary stain which dissolves the mycolic acid present in the cell wall of Mycobacterium smegmatis and penetrates through it which results in staining Mycobacterium red.

Staphylococcus aureus cell wall does not contain mycolic acid so carbon fuchsin does not penetrate its cell wall, therefore, it becomes colorless after destaining with acid alcohol.

After destaining step methylene blue is added to stain non-acid-fast bacteria blue. So if I mistakenly forgot to use methylene blue during the procedure Mycobacterium smegmatis will appear red due to carbon fuchsin present in their cell wall and Staphylococcus aureus will appear colorless because it is destained.

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Which Diagram Can Be Used To Show The Population Of Producers, Primary Consumers, And Secondary Consumers In A System

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The diagram that would be used would be an energy pyramid.

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makvit [3.9K]

Answer:

Aquatic plants

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A cotton farmer applies a new insecticide against the boll weevil to his crop for several years. at first, the treatment was suc

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Yes, it is possible that evolution occurs in this case.

At first, the new insecticide is effective against the boll weevil. Spraying the insecticide will kill the boll weevil in a way. The insecticide might attack boll weevil enzyme or any part of its organs.
But some of them might have a mutation that renders the insecticide ineffective. The mutation probably happens to DNA that code the enzyme or protein that targeted by the insecticide, makes the insecticide completely ineffective.
The next spray will kill all old organism, leaving the new resistant organism in less competition area. This will allow the resistant organism to grow fast and eventually replace all the old organism in the area.

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